Terry Myerson (EVP OS):
"This is more than a one-time upgrade: once a Windows device is upgraded to Windows 10, we will continue to keep it current for the supported lifetime of the device - at no additional charge. With Windows 10, the experience will evolve and get even better over time. We'll deliver new features when they're ready, not waiting for the next major release."
Its funny you mention movie theater, as there I would be fine with it. Private party, I don't own the theater, compared to my car and my phone, and I could choose to frequent a theater that didn't do it if it bothered me vs government forcing it on me. I probably would go to that theater though if it was the closest, I don't care if my phone doesn't work while I am watching a movie. I do care when I am a passenger in a vehicle.
Should there be some form of performance metric? Sure. It needs to be very carefully set up though, and the child's own performance needs to be a part of it as well as the parents. NO teacher is going to be able teach calculus to a kid who skips 2 days a week to babysit for his siblings because his parent(s) can't afford childcare. It also needs to be politics resistant, I don't want my kids teacher worried about their job because some new guy won an election. I want them worried about how to best teach the next chapter, and that is it.